Monday HW!

Tonight, please complete the following in your "textbook"--you can either use the PDF version of our book on the right, OR use the packet I provided in class!

• Page 134-138: 14, 19, 90
• For 14, use the example from class!
• For 19...
• To find the vertex you will again use the formula x = -b/2a to find the x-coordinate, then substitute to find the y coordinate of the vertex (like our class example)
• The x-intercepts are different here--we cannot "solve with square roots" because we have an "x term." So, to find the x-intercepts, we substitute 0 for y and then we can either factor or use the quadratic formula to solve for x
• For 90, use the formula to find the axis of symmetry for each, then compare!

Tomorrow in class we'll get back into our section 2.1 notes, exploring quadratic functions!

Here are the  homework answers so you can check your work:

14.) Vertex = (0, 25); X Intercepts: (5, 0) and (-5, 0)

90.) True! (Axis of Symmetry for each simplifies to -5/4)

Odd Answers Below (for 19)